package com.atguigu.ssoclient.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestTemplate;

import javax.servlet.http.HttpSession;
import java.util.ArrayList;
import java.util.List;

/**
 * @作者：ldk
 * @email 2505496685@qq.com
 * @描述：默认描述
 * @创建时间：17:00 2020-11-25
 * @修改时间：17:00 2020-11-25
 * @修改描述：默认描述
 */
@Controller
public class HelloController {

    @Value("${sso.server.url}")
    String ssoServerUrl;

    @ResponseBody
    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }

    /**
     * 感知这次是在ssoserver登录成功调回来的
     * @param model
     * @param session
     * @return
     */
    @GetMapping("/boss")
    public String employees(Model model, HttpSession session,
                            @RequestParam(value = "token",required = false) String token){

        if(!StringUtils.isEmpty(token)){
            //去ssoserver登录成功跳回来就会带上
            //去ssoserver获取当前token真正对于的用户信息
            RestTemplate restTemplate = new RestTemplate();
            ResponseEntity<String> forEntity = restTemplate.getForEntity("http://sso.com:8080/userInfo?token=" + token, String.class);
            String body = forEntity.getBody();
            session.setAttribute("loginUser",body);
        }
        Object loginUser = session.getAttribute("loginUser");
        if(loginUser==null){
            //没登录，就跳转到登录服务器进行登录

            //redirect_url=http://client1.com:8080/employees
            //跳转过期之后，使用url上的查询参数标识我们自己是哪个页面
            return "redirect:"+ssoServerUrl+"?redirect_url=http://client2.com:8082/boss";
        }else{
            List<String> emps = new ArrayList<>();
            emps.add("邝茜茜");
            emps.add("唐糖");
            emps.add("刘德凯");
            model.addAttribute("emps",emps);
            return "list";
        }

    }
}
